Andrew ferrari



TOR:

INVEN QMOUUKM' Patented June 24, 1890.

UNITED STATES PATENT OFFICE.

ANDREV FERRARI, OF GLASSBOROUGH, NEW JERSEY, ASSIGNOR TO THE -WHITNEYGLASS NVORKS, OF SAME PLACE.

GLASS-ANNEALING OVEN.

SPECIFICATION forming part of Letters Patent No. 430,937, dated J' une24, 1890.

Application filed December 7, 1889. Serial 110.332,89?. (No model.)

To all whom it may concern.-

Be it known that I, ANDREW FERRARI, a citizen of the United States,residing at Glassborough, in the county of Gloucester and State of NewJersey, have invented a new and useful Improvement in Glass-Anneali`ngOvens, which improvement is fully set forth in the followingspecification and accompanying drawings.

My invention relates to a glass-annealing oven; and it consists in theconstruction and arrangement of the parts thereof, as will be more fullyhereinafter described, and pointed out in the claims.

Figure l represents a transverse vertical section on line as at, Fig. 2,of a glass-annealing oven embodying my invention. Fig. 2 represents alongitudinal vertical section thereof on line y y, Fig. l. Fig. 3represents a horizontal section thereof on line e' .2, partly brokenaway, Fig. 2.

Similar letters of reference indicate corresponding parts in the severalfigures.

Referring to the drawings, AB O designate a number of glass-annealingovens having necks D, connecting the bottoms thereof.

E designates a horizontal flue, which eX- tends under the floor of eachoven and through each neck D, thus making the iiue continuous. tical iueF, which opens at the top into said chamber and at the bottom into theflue E.

G G designate vertical fines, which are formed in the base of thecentral oven B and adjacent necks D, the same being in communicationwith the flue E, and also with a supplemental flue H, which is below thecentral portion of said iiue E.

In the flue E, below the oven B and adjacent to the necks D, are dampersJ K, and in the flues G G are dampers L and M.

Each stack N has a damper P, and each oven has a burner Q forintroducing hydrocarbon vapor or other liquid fuel into the oven, itbeing noticed that each oven has a pile R of fire-brick or otherrefractory material, against which the ignited vapor is directed fordiffusing said vapor and distributing the heat in the ovens.

lVhen the burner of ovenA is in operation,

rthe burners of the other ovens are closed.

The heat in the oven A, after effecting its work therein, enters aswaste heat the flue F At the back of each chamber is a ver-- anddescends to the liuc E. It will be noticed that the dampers J K areclosed, the

dampers L M opened, and the dampers of the stacks of the ovens A Bclosed. The waste heat traverses the portion of the flue E beneath theoven A, descends the iiue G, passes through the flue H, rises in theflue G", and thus reaches the portion of the iiueE below the oven C,after which it enters the ue F of said oven O and is directed by thesame into said oven O, where it is eifective for heating the latter, andis thereby utilized, it finally escaping through the stack of said ovenC.

It is evident that by proper manipulation of the dampers the waste heatfrom the ovens B and O may be directed into either of the other ovens,so that effective work may be performed, it also being seen that thesides and bottoms of the ovens may be heated by the waste heat andeither oven primarily prepared for its work by the introduction of suchheat thereinto, thus utilizing the saine instead of directly passing itoff, which, as is evident, is a loss. Y

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a glass-annealing. furnace, a series of ovens having burners andlcommunicating one with the other at the lower portions thereof by meansof flues E and separated by double walls, with a'space between the same,said flues E having dampers therein, the lues G, G', and H below theflues E, and the dampers L M, controlling communication of the iiues G Grespectively, with the flues E, whereby the waste heat from one oven maybe conveyed to another oven, substantially as described.

2. Glass-annealing ovens with communieating fiues E under the oors ofsaid ovens, in combination with the flues F at the back of each oven,the flue I-I below flues E, the flues G G', connecting said flues H andE, the stacks N, the dampers .I K in the Hue E, the dampers L M in theflues G G', and the dampers P in the stacks N, substantially asdescribed.

ANDREW FERRARI. Witnesses:

JoHN A. WIEDERSHETM. JAMES F. KELLY.

IOO

